I understand, but the execution of Shrek (preshow) makes the attraction. Yes, you CAN see the same film other places, but most people haven't.
I would prioritize Kid Zone, Fear Factor, Toon Lagoon Amphitheater, and Sinbad Theater far higher than Shrek as NEEDED upgrades. Shrek sells merchandise and is owned by Universal. It does decently in guest satisfaction scores. The others are dead space or under utilized. Fix the truly broken things first, then upgrade the things that could be stronger.